BTOWC(3) Linux Programmer's Manual BTOWC(3)
NAME
btowc - convert single byte to wide character
SYNOPSIS
#include <wchar.h>
wint_t btowc(int c);
DESCRIPTION
The btowc function converts c, interpreted as a multibyte sequence of length 1, starting in the initial shift state, to a wide character
and returns it. If c is EOF or not a valid multibyte sequence of length 1, the btowc function returns WEOF.
RETURN VALUE
The btowc function returns the wide character converted from the single byte c. If c is EOF or not a valid multibyte sequence of length 1,
it returns WEOF.
CONFORMING TO
ISO/ANSI C, UNIX98
SEE ALSO
mbtowc(3)
NOTES
The behaviour of btowc depends on the LC_CTYPE category of the current locale.
This function should never be used. It does not work for encodings which have state, and unnecessarily treats single bytes differently from
multibyte sequences. Use the function mbtowc instead.
GNU
1999-07-25 BTOWC(3)